Flexible collar



I N 1929- R. P. BRYANT 1,735,636

FLEXIBLE comm Filed Aug. 21, 1926 Fig- 1- l atente cl Nov. 12 1929 I x This invention relates to a flexiblecollar RYLAND 2P. BRYANT, or MARION, sourn onaoLiiiA- 1 FLEXIBLE: COLLAR Application filed August 21,1926. Seria1.1 \l'o.'130,635.

for gang, band and circular saw grinders, and

it is primarily an object of the invention to i provide a collar'ofthisykind .which is designed for'use as an emery wheel arbor attachment, operating to permit the grinder to sharpen the teeth-uniformly and to a point without the use of a file for finishing. 7

Another object of the invention. is to pro,- vide aacollar of this kind adapted to be attached directly to the arbor of a grinder without necessitating any extensions of the arbor and which collar, when in applied or working position, permits an end motion of. the arbor sufiicient to eliminate burning or case hardening the'points of the saw teeth which would otherwise cause the saw to shed :the points and mark the lumber. It is also anobject of the invention to provide a collar'of this kind which can be at-' tached directly to the arbor of any a grinder Without necessitating arbor extensions.

1 An additional object of the invention is to provide a collar or attachment of this kind which is adapted to be engaged directly with an end portion of an arbor, and without requiring any special constructionof the arbor or adjacent bearing and which is applicable with equal facility upon new and old'work, the collar when applied taking the, place of the'conventional holding nut ormember now generally employed.

The invention consists in the details of construction and in the combination and arance with an embodiment of my invention and in applied position;

partly in elevation'of my appliedposition, v

Figure 3 isa View in elevation of the inner face of the device as illustrated in Figure 2 unapplied, with the annular member or Washer removed; 1 V i V Figure 4 is a view in "elevation of the annular member or washer hereinemployed Figure 5 is a'view in elevation' o'f'the outer face of the holding nut asjherein employed. i

As disclosed in the accompanyingdrawing, A denotes an ,emerywheel arbor ofva conventional type which has an end portion r0- tatably engaged withinthe bearing or box B. Engaged withan end portion of said arbor A outwardly of the bearing or box Bis a collar G, the wall l'of the bore of said collar being threadedfor engagement with said end portion of the arbor A. j -j W V.

The collar 0 comprises an outerbroadannular body .9 having-an annular web formed about the inner wall midway between the edges thereof andiformed, about the edge; of

improveddevice in this web is aflange 4:, which is concentric. with the outer portion and extends to terminatein Figure 2 is a view partly i'nsection-and the same plane as the adjacent edge of the outer portion. Thereis thus formed between the flange and the outer portion the annular recess 3.

' Surrounding the ii sacoil I preferably comprising single convolution. Snugly, engaged; within the outer portion of the recess or channel 3is an annular member or washer '6 which is constantly urgedout- Wardly by thespring f5- bearing against the v web 4:;forldirect'c0ntact with the adjacent. V

face'of-the bearings or box B. The periphery of the member or washer 6 is provided with. a notch 7 in which is received an inwardly dig rected pin'or; member Scarried by the outer portion 9 of the collar 8.; v By this means the collar C and the member or washer 6 are keyed or lockedone tothe other'and thereby heldagainstindependent rotation. V I s It is also to be noted that therecessB isjof a'depth to entirely receive orhouse the washer 6 s o that in the eventflabnormal strain is in posed upon theiwasher through the arbor A, the washer 6 will be received entirely within the recess 3'and thus permit the collar C to have direct contact with the bearing B. This will prevent injury to the connection between.

the collar and recess as afforded by the pin 8 and the notch 7 or to the spring 5.

lar 'C is gripped with one hand while the e'n he dg of, he a n lar p rtion o the collarC forms in association with the web t a flange 10 whereby is provided, when the I device is in position on the arbor, a recess or pocket in which is received a portion of a nut When the device is being applied, the colnut 11 is being tightened with the other but i being required.

little pressure of the nut 11 on the collar U My improved collar may be, defined as be ing flexible and designed for use as an emery I -wheel arbor attachment for gang, band and "circular saw grinders. It hasbeen demon strated in practice that myimproved collar or attachment permits the grinder to sharpen theteeth uniformlyand to a point without the use of a, file for finishing. It can be attached directly tothe arbor of any grinder V and in that way is superior to other devices in use which require arbor extensions. 7

It. has also beeneflectively established in practice and to the satisfaction of experts that my improved'collarefiects a saving in saw steel from forty to sixty percent in that only from i to /4" need be ground ofl aband saw in thirty' dayswhereas without the collar or more will be removed in the same lengthof time. It keeps the emery wheel in good shape and eliminates theneed for using an emery wheel dresser for trueing the wheel.

The saw'teeth are ground uniformly inducing the manufacture of more and better lumber.

. From the foregoing description it is thought to be obviousthat a flexible collar constructed in accordance withmy invention particularly well adapted for use by rea- I 7 son of'the convenience and facility with i. which itmay be assembled-and operated,;and

it, will also be obvious that my invention is susceptible of some change and modification Without departingfrom the principles and spirit thereot and for this reason I do not Wish to be understood as-limiting myself to the precise arrangement and formation or the several parts herein shown in carryingv out myinvention in inafter claimed.

I claim 1. In an article of the character described, a collar comprising a relative broad annular outer portion, an annular web formed about the inner wall at the center thereof, a flange ormed through u e edgeef said Web and 1 practice except as here- 7 projecting laterally therefrom, concentric with and to a pointin the same plane asthe adjacent edge oft-he outer portion, a washer surrounding said flange and adapted to be entirely received in the space between the web and the edges of the flange and outer por tion, a resilient member interposed between said washer and said web andl'normally urging the washer outwardly, means tor secnr= ing the article in position on an arbor, and a couplingpin between. said collar and. said Washer, carried by the outer portion of the collar, and engaging in a notch formed transversely of the periphery of the washer. I

2. In an article of the character described, a collar comprising a relatively broad annular outer portion, an annular web formed about the inner wall at the center thereoLa flange formed throughoutthe' edgeLof .said' web and I projecting laterally therefrom, concentric I with and to a point'in the same plane as the adjacent edge of the outer portion, .a washer surrounding said. flange and the edges'of the flange and outer portion, a resilient'member interposed between the saidwasher and web and normally urging the washer outwardly,

means for establishing screw=threadcoimection between said flange and "supporting arbor, a nut designed to be threaded upon the arbor and to extend into. the outer portion to bear against said web, "and-a coupling pin I between said collar and. saidwasher, carried by the outer portion of the collar,"and engag ing in a notch formed transverselyof the periphery of the washer. I

In testimony whereof Ihereunto aflix my signature. I

BRYANT. 

